A chemotherapy pump speed calculation compass

By designing a chemotherapy pump quick-calculation compass, the infusion time and volume can be intuitively judged, solving the problems of low efficiency and inaccuracy caused by reliance on manual calculation in existing technologies, and improving the efficiency of medical and nursing work.

CN224287442UActive Publication Date: 2026-05-26TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
Filing Date
2025-07-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The control of infusion time and volume using existing chemotherapy pumps relies on manual calculation, resulting in low efficiency and insufficient accuracy, which affects the efficiency of medical and nursing work.

Method used

Design a chemotherapy pump quick calculation compass, which includes a first dial, a second dial, and a rotating pointer. By intuitively comparing the drug dosage and time scale, and combined with a damping mechanism to prevent pointer slippage, it can directly determine whether the infusion meets the requirements.

Benefits of technology

It improves the accuracy of infusion time and volume control, reduces the calculation burden on medical staff, and increases work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a chemotherapy pump quick calculation compass, relating to the field of medical device technology. The chemotherapy pump quick calculation compass includes a first turntable, a second turntable, a rotating pointer, and a rotating shaft. The first turntable, second turntable, and rotating pointer are sequentially arranged along the axial direction on the rotating shaft. The upper surface of the first turntable has a dosage scale, and its center is fixedly connected to the rotating shaft. The upper surface of the second turntable has a time scale, and its center is rotatably connected to the rotating shaft. The end of the rotating pointer furthest from the needle tip is rotatably connected to the rotating shaft. The diameter of the first turntable is larger than that of the second turntable, and the length of the rotating pointer is smaller than the radius of the second turntable. This utility model, through the combination of the pointer's value, the time scale, and the dosage scale data, can intuitively show the infusion start time, the medical staff shift change time, and the infusion volume. Then, by comparing the infusion volume on the turntable with the value on the infusion pump, it can be determined whether the infusion volume is within a reasonable range.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a chemotherapy pump speed calculation compass. Background Technology

[0002] Currently, most clinical treatments for gastrointestinal tumors involve continuous chemotherapy pump infusion. The total infusion time and the infusion volume per unit time are relatively fixed. This method has a long infusion time and requires high control over the infusion time and volume. However, when medical staff check the chemotherapy pump during ward rounds and shift handovers, they can only calculate the time and then estimate the infusion volume themselves, which results in slow calculation speed and low accuracy, affecting work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a chemotherapy pump quick calculation compass in response to the existing technical situation. This invention can intuitively display the infusion start time and shift handover time, and the infusion volume on the turntable can be directly compared with the value on the chemotherapy pump, eliminating the need for medical staff to calculate the infusion volume and improving work efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A chemotherapy pump speed calculation compass, characterized in that it includes a first turntable, a second turntable, a rotating pointer, and a rotating shaft, wherein the first turntable, the second turntable, and the rotating pointer are sequentially arranged on the rotating shaft along the axial direction;

[0006] The upper surface of the first turntable is provided with a dosage scale, and the center of the first turntable is fixedly connected to the rotating shaft;

[0007] The upper surface of the second turntable is provided with time scale, and the center of the second turntable is rotatably connected to the rotating shaft;

[0008] The end of the rotating pointer furthest from the needle tip is rotatably connected to the rotating shaft;

[0009] The diameter of the first turntable is larger than that of the second turntable, and the length of the rotating pointer is smaller than the radius of the second turntable.

[0010] Furthermore, the rotating pointer is provided with a first damping mechanism, which is used to generate damping when the rotating pointer rotates on the second turntable.

[0011] Furthermore, the first damping mechanism is a spring plate, which is disposed on the lower surface of the rotating pointer and abuts against the upper surface of the second turntable.

[0012] Furthermore, the second turntable is equipped with a rotating rod.

[0013] Furthermore, the lower end of the rotating rod extends to the lower side of the second turntable, and a second damping mechanism is provided on the rotating rod. The second damping mechanism is used to generate damping with the upper surface of the first turntable when the second turntable rotates.

[0014] Furthermore, the lower end of the rotating rod is provided with an upwardly extending groove, and the second damping mechanism includes a spring and a ball. The second damping mechanism is disposed in the groove provided at the lower end of the rotating rod. The upper end of the spring abuts against the upper wall of the groove, the lower end of the spring abuts against the ball, and the ball abuts against the upper surface of the first turntable.

[0015] Furthermore, the chemotherapy pump quick calculation compass also includes a protective box for protecting and storing the chemotherapy pump quick calculation compass.

[0016] Furthermore, the first turntable, the second turntable, and the rotating pointer are all made of plastic.

[0017] Furthermore, the rotating rod is located at the edge of the second turntable.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model provides a chemotherapy pump quick calculation compass. Medical staff can turn the pointer and rotate the second dial. According to the pointer, the data of the drug dosage scale on the first dial and the time scale on the second dial can be used to intuitively see the infusion start time, shift handover time and infusion volume. It is only necessary to compare the infusion volume on the dial with the data on the chemotherapy pump to determine whether the infusion meets the requirements, without the need for medical staff to calculate it themselves.

[0020] 2. This utility model provides a chemotherapy pump speed calculation compass, on which the first damping mechanism and the second damping mechanism can prevent relative sliding between the rotating pointer and the second turntable, and between the second turntable and the first turntable, caused by external environmental factors, which would lead to incorrect numerical values ​​and affect the judgment of medical staff. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a chemotherapy pump speed calculation compass according to the present invention;

[0022] Figure 2 This is a side view of a chemotherapy pump speed calculation compass according to the present invention;

[0023] Labeling instructions: 1-First turntable; 101-Dosage scale; 2-Second turntable; 201-Time scale; 202-Rotating rod; 203-Second damping mechanism; 3-Rotating pointer; 301-First damping mechanism; 4-Rotating shaft; 5-Protective box. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1:

[0026] Please see Figure 1 As shown, a chemotherapy pump speed calculation compass includes a first turntable 1, a second turntable 2, a rotating pointer 3, and a rotating shaft 4. The first turntable 1, the second turntable 2, and the rotating pointer 3 are arranged sequentially on the rotating shaft 4 along the axial direction.

[0027] The upper surface of the first turntable 1 is provided with a dosage scale 101, and the center of the first turntable 1 is fixedly connected to the rotating shaft 4.

[0028] The upper surface of the second turntable 2 is provided with time scale 201. The center of the second turntable 2 is rotatably connected to the rotating shaft 4. It should be noted that the diameter of the first turntable 1 is larger than that of the second turntable 2.

[0029] The end of the rotating pointer 3 furthest from the needle tip is rotatably connected to the rotating shaft 4. It should be noted that the length of the rotating pointer 3 is less than the radius of the second turntable 2.

[0030] Specifically, the time scale 201 on the upper surface of the second turntable 2 is divided into 24 equal parts, with values ​​marked from 0 to 23. The time scale 201 is used to indicate the shift handover time for medical staff. The dosage scale 101 on the first turntable 1 is also divided into 24 equal parts. The dosage scale 101 on the upper surface of the first turntable 1 is used to read the dosage infusion volume. The dosage scale includes inner circle values ​​and outer circle values. The inner circle values ​​are set along the outer circumference of the second turntable 2, and the outer circle values ​​are set along the outer circumference of the first turntable 1. The inner circle values ​​are marked from 0 to 115, and the outer circle values ​​are marked from 120 to 235.

[0031] In the above technical solution, the rotating pointer 3 is preferably provided with a first damping mechanism 301, which is used to generate damping when the rotating pointer 3 rotates on the second turntable 2.

[0032] Specifically, the first damping mechanism 301 is a spring plate, which is disposed on the lower surface of the rotating pointer 3 and abuts against the upper surface of the second turntable 2. After the rotating pointer 3 is moved to the predetermined position, the spring plate can press firmly against the upper surface of the second turntable 2 to prevent the pointer from sliding due to other environmental reasons, changing its direction, and causing inaccurate readings.

[0033] In the above technical solution, the second turntable 2 is provided with a rotating rod 202, which is located on the edge of the second turntable 2, making it convenient for medical staff to operate and avoiding affecting the relative position of the rotating pointer 3 when rotating the rotating rod 202.

[0034] More preferably, the lower end of the rotating rod 202 extends to the lower side of the second turntable 2, and the rotating rod 202 is provided with a second damping mechanism 203. The second damping mechanism 203 is used to generate damping with the upper surface of the first turntable 1 when the second turntable 2 rotates.

[0035] More specifically, the lower end of the rotating rod 202 is provided with an upwardly extending groove, and the second damping mechanism 203 includes a spring and a ball. The second damping mechanism 203 is disposed in the groove provided at the lower end of the rotating rod 202. The upper end of the spring abuts against the upper wall of the groove, the lower end of the spring abuts against the ball, and the ball abuts against the upper surface of the first turntable 1.

[0036] Taking fluorouracil pump infusion as an example, the working principle of this utility model is as follows:

[0037] Since the fluorouracil pump provides continuous infusion for 46 hours, infusing 5 ml per hour for a total infusion of 230 ml, after the first infusion, medical staff record the start time. For example, if the start time is 17:00, they align the 17 mark on the second dial 2 with the 0 mark on the first dial 1, and then move the pointer 3 to the expected shift handover time, such as 9:00 AM. At this time, the pointer 3 points to the inner circle of the first dial 1 with a value of 80, and the outer circle with a value of 200. For chemotherapy pump infusions within 24 hours, check the inner circle value; for infusions exceeding 24 hours, check the outer circle value. After the shift handover time, medical staff observe whether the error between the value on the scale and the value on the chemotherapy pump is within 5 ml. If it is within 5 ml, the current infusion meets the requirements.

[0038] Example 2:

[0039] Please see Figure 2 As shown in Example 1, the chemotherapy pump quick calculation compass also includes a protective box 5. The protective box 5 is used to protect and store the chemotherapy pump quick calculation compass, preventing other personnel from adjusting the turntable without authorization when the compass is placed in the ward, which would result in invalid data and affect the judgment of medical staff. It can also prevent the turntable from being contaminated.

[0040] In this embodiment, the chemotherapy pump speed calculation compass is made of plastic.

[0041] In other embodiments, the chemotherapy pump speed compass may be made of PVC material.

[0042] Of course, the above are only preferred embodiments of this application and are not intended to limit the scope of application of this application. Therefore, any equivalent changes made to the application principle should be included within the protection scope of this application.

Claims

1. A chemotherapy pump speed calculator compass, characterized by: It includes a first turntable, a second turntable, a rotating pointer, and a rotating shaft, with the first turntable, the second turntable, and the rotating pointer arranged sequentially on the rotating shaft along the axial direction; The upper surface of the first turntable is provided with a dosage scale, and the center of the first turntable is fixedly connected to the rotating shaft; The upper surface of the second turntable is provided with time scale, and the center of the second turntable is rotatably connected to the rotating shaft; The end of the rotating pointer furthest from the needle tip is rotatably connected to the rotating shaft; The diameter of the first turntable is larger than that of the second turntable, and the length of the rotating pointer is smaller than the radius of the second turntable.

2. The chemotherapy pump speed calculation compass according to claim 1, characterized in that: The rotating pointer is provided with a first damping mechanism, which is used to generate damping when the rotating pointer rotates on the second turntable.

3. The chemotherapy pump speed calculation compass according to claim 2, characterized in that: The first damping mechanism is a spring plate, which is disposed on the lower surface of the rotating pointer and abuts against the upper surface of the second turntable.

4. The chemotherapy pump speed calculation compass according to claim 1, characterized in that: The second turntable is equipped with a rotating rod.

5. A chemotherapy pump speed calculation compass according to claim 4, characterized in that: The lower end of the rotating rod extends through to the lower side of the second turntable, and a second damping mechanism is provided on the rotating rod. The second damping mechanism is used to generate damping with the upper surface of the first turntable when the second turntable rotates.

6. A chemotherapy pump speed calculation compass according to claim 4, characterized in that: The lower end of the rotating rod is provided with an upwardly extending groove. The second damping mechanism includes a spring and a ball. The second damping mechanism is set in the groove at the lower end of the rotating rod. The upper end of the spring abuts against the upper wall of the groove, and the lower end of the spring abuts against the ball. The ball abuts against the upper surface of the first turntable.

7. A chemotherapy pump speed calculation compass according to claim 1, characterized in that: The chemotherapy pump quick calculation compass also includes a protective box, which is used to protect and store the chemotherapy pump quick calculation compass.

8. A chemotherapy pump speed calculation compass according to claim 1, characterized in that: The first turntable, the second turntable, and the rotating pointer are all made of plastic.

9. A chemotherapy pump speed calculation compass according to claim 4, characterized in that: The rotating rod is located at the edge of the second turntable.